import { computed, onUnmounted, ref } from "vue";
import dayjs from "dayjs";
// 封装倒计时
export const useCountDown = () => {
  let timer = null;
  const time = ref(0);
  const formatTime = computed(() => dayjs.unix(time.value).format("mm分ss秒"));
  const start = (currentTime) => {
    const now = dayjs();
    console.log(now.yy);

    time.value = currentTime;
    timer = setInterval(() => {
      time.value--;
    }, 1000);
  };
  onUnmounted(() => {
    timer && clearInterval(timer);
  });
  return {
    formatTime,
    start,
  };
};
